Builder&#39;s hardware



Jan. 1,1935. 4 E. H. JOHNSON 1,986,677

BUILDERS HARDWARE Filed March 14. 1952 2 sheets-sheet 1 26 za) l f ,MWMw Jan. l, 1935.v Y E. H. JoHNsoN l l l BUILDERS` HARDWARE Filed March14, 1932 2 Sheets-Sheet 2 @f f@ BZ 75 u 80 130 muisarm 1, 193s 1,986,677

Bumpers mnwm "f Application March 14, 1932,l No. V598,'1'11 y comms.(onzin-27s) f invention relates to Builders hardware and 14.; 'rmsconstruction makes une nut 42' a mere includes" among "its'objectsandadvantages'the -`lock nutto keep the pintle fromfshifting a'ndprovisionof an improved door holder. tightening or loosening theconnection between In theQaccOmpanying'dIaWingSy the arm 10 and thebracket 14. Meansfor holdl 1" fis a side elevation-fof a" portion of a.ing the nut 4 2 vagainst relative 'movement on Vthe 5 *door`-sliowingfrrnfr yinvention''applied thereto; threaded' portion 40comprises `a. lock washer 44 is a view taken alongVv the fpositionedupon the threaded portion 40 between *line 2l2 ofi; j f "1 l the nut 42and the bracket 14. The cylindrical Figure is an enlargedjsecticnal viewtaken portion 36 is slightlylonger than the opening 38, loalong the line3`'3\of Figure y1; y "`so that vits end contacts with the -bracket 1 4.10 "`Fig`u1"e 4. isasctional view" taken" along the I'hus it'will beseen that while thev pintle is Aline 4-4 of Figure 1; lfirmly securedagainst relative movement with 'Figure 5 isa side elevation of a portionof the the bracket v14, the cylindrical portion 36 is' perdoor holder;mitted rotative movement within the opening 38.

l5 vFigure 6is a--plan v ie'w ofthe structure shown A thin washer 46isplaced between the arm 10 and 15 26 f mechanism;

in Figure 5; y `4thebracket 14 upon the cylindrical portion 36. Figure'Is a`sectional view taken along-the This washer separates the arm 10from the line -7-7 of Figure-6; i bracket 14 a desirable distance sothat complete Figure 8 is a view illustrating the releasing freedom ofmovement between vthese two parts l I' is permitted.' The -head'48-ofthe pintle'is po- 20 Figure 9is a sectional view taken along thelsitioned within 'a recess 50'in the arm 10 subline 9-9 of Figure 7;stantially flush with the upper face of the arm. Figure 10 is ayperspective of a cam member; The pivotal connection 22 between the arm10 Figure 11 is a perspective'jview of a sleeve and the bar 24 comprisesa pintle 52 (see Fig- 26 associated with theA cam member," ure 3) havinga cylindrical portion 54 passing 25 Figure v12 is a perspective viewyof` a washer through an opening 56 in the arm 10. The associated withthe sleeve; threaded portion 58 of the pintle is threaded into Figure 13isy an end view of a portiony of my the sliding bar 24. When the pintleis turned device; and down to the position shown in Figure 3, the endFigure 14 is a diagrammatic view illustrating of the cylindrical portion54 will bear against 3o the door 'holder-'applied toa door `of the'double the sliding member 24 so that the pintle is held acting type. in against turning relatively to the `sliding bar.

The embodiment selected to illustrate the in- Thus it will be seen thatthearm 10 is pervention is for use with either'single or doublemittedrotative movement upon the cylindrical acting doors and comprises an arm10 pivotally portion 54. The head 60 of the pintle 52 is 35 connected at12 (see Figure 2) with a door positioned within a recess 62 in the arml0.

bracket 14. Arecess 16 is cut in the upper end It will be noted inreferring to Figure 3, that vof the door 18 for receiving the bracket.Screws the sliding bar 24 is substantially T-shaped in `20 secure thebracket tothe door.` The opposite cross section, and that the guidemember is end of the arm is pivotally connected at 22 with slotted andgrooved toconform to the shape of 40' vajsliding bar 24 associated witha guide member the sliding bar. Both parts are made from ma- 26. Theguide member 26"is positioned within' terial of the samethickness. Oneend of the a recess 28 in thecasingv30 with which` the door sliding baris cut away as at 64 (see IFigure 6) i 10 is associated through themedium of spring to provide a head 66. This head is provided with hinges32 which tend'to' close the door.` 4Screws a cam surface 68 and arecessV 70 for receiving 45 y33 secure the guide member to' the casing'.The a roller'72 (see Figures 5, 7, and 8) when the bar 24 is arranged'to slide to" and fro along the door has been moved to its open positionas illusguide member 26 to permit the door to be moved trated in Figure2. The roller '10 is loosely upon its hinges 32 in the ordinary manner.mounted upon a pin 74 carried by one end of a In Figure 4 yI havedetailed' the pivotal conlever 76. The lever is positioned between apair 50 nection between the arm 10 and the door bracket of lugs 78formed integrally with the carriage 14. The pivotal connection comprisesa pintle 34 and fulcrums upon a pin 80 carried by the lugs.

having a cylindrical portion 36 passing through The normal position ofthe lever when the head an opening' 38 in the arm 10 `and a threaded 66is disengaged from the roller end, is indicated portion 40 threadedthrough'the door bracket in Figure 5. Shoulders '19 upon the lever '16en- 55 gage the lugs 78 for limiting the downward movement of the rollerend of the lever so that the roller cannot move below the lower end ofthe cam surface 68. 'Ihe lever is yieldingly held in this position bymeans of a spring 82 mounted upon a roller end of the lever 76 whichcompresses the spring 82. As soon as the head 66 has been movedsufficiently far to properly align the recess 70 with the roller 72, thelatter will snap into the recess by reason of the spring 82. 'Ihe roller72 is resiliently urged in the direction of the head 66 Y with aforcesunicient to hold the door against a closing force materiallygreater than that of the closing spring for the door` but materiallyless than the hinges will stand without injury, so that the applicationof a reasonably small additional force will enable the user to close thedoor merely by pushing on it.

I iind that good results can be obtained by positioning the door holderwith respect to the hinges 32 in such a manner that the head 66 of thesliding member will be connected with the lever 76 when the door hasbeen swung 90 from its closed position. It is desirable to providecushioning means for damping the shock occurring when the door is movedabruptly to the open position shown in Figure 2. I have illustrated ablock 94 which is positioned in a spring chamber 96 transversely of the-head 66. The head is shaped to pass between the 4lugs 78 against whichthe block 94 is yieldingly held by means of a pair of springs 98. lTheblock is bored at 100 for receiving pins 102 upon which the springs 98are mounted. One end of each spring bears against the end of the springchamber, as at 104. The springs are placed in position with thenecessary amount of initial tension. The pins 102 are threaded upontheir inner ends 106 and threaded into openings 108 in the guide member.This feature is'clearly brought out in Figure 7. A screw driver may beinserted in slots 110in the exposed ends of the pins for assembling orremoving the mechanism associated with the pins.

The end of the head 66 bears against the block 94 when the roller 72 isfinally positioned within the recess 70. When the head 66 strikes theblock 94, any remaining forcein excess of that which is necessary toswing the door to its open position is absorbed in the compression ofthe springs 98. Shoulders 112 limit the amount the springs may becompressed by striking against the edges 114 of the lugs 78. Suchstriking does not generally occur during the normal opening and closingof the door. Referring now to Figure 7, I have shown the manner in whichthe lever 76 is moved during the cushioning action. It will be notedthat one side of the recess 70 inclines gently as at 115, so that theroller 72 may move easily up the incline when the door is moved beyondits normal open position. The cushioning function 'of the springs 98 iseffective only during such movement of the roller up the incline. InFigure 7, the full line illustration of the lever and the head 66 showsthe manner in which the cushioning function is brought about, and thedotted line showing illustrates the roller positioned in the recess forholding the door in the open position shown in Figure 1. As soon as theexcess force has been-absorbed, the springs 98 move the head 66 back tothe dotted line position and the roller comes to rest at the bottom ofthe recess 70.

I have provided means for rendering the door holder inoperative forholding the door open. In Figure 7, I have shown the `washer 88 as beingpositioned upon a slidable cam block 116. In Figure 8 the cam block isshown as being shifted suflioiently forward to render the spring 82inoperative for holding the roller 72 in the recess 70. In referring toFigure 9, it will be noted that the sleeve 84 is slidably mounted upon apin 118 secured to the bottom of the spring chamber 96. 'Ihe lower endof the sleeve is flattened at 120 and slidably positioned within a slot122 in the cam block. lI 'he lower end of-the sleeve passes through thewasher 88 andl is provided with anges 124 for preventing the washer fromdropping oi the sleeve when it is not supported by the cam block.Referring now to Figure 13, it will be noted that the end of the guidemember is slotted as at 126, and is provided with ribs 128 which ridewithin grooves 130 in a grip member 132 which is welded to the camblock. 'Ihe cam block is of material having high wear resistingproperties. The grip portion 132 is of the same material as the carriage10 to eliminate color contrast. The grip member 132 terminatessubstantially flush with the lower face of the guide member, asillustrated in Figure 8. Ordinarily the flange 124 will rest upon thethin extensions 134 upon the cam block when it is shifted to theposition shown in Figure 8. The cam block may be easily shifted forlifting the washer to a position where it will rest upon the upper faceof the cam block, as shown in Figure 7. When the cam block is positionedas in Figure 8, the door may be opened and closed without beinginfluenced by the lever 76.

The door holder is substantially concealed from view and is soconstructed that no parts project beyond the casing or the door when thedoor is closed. I have recessed the guide member 26 to accommodate thearm 10, so that no part of the arm will project .beyond the contour ofthel guide member when the door is in its closed position. Thisconstruction provides a compact arrangement of the parts.

In Figure 14, I have illustrated my door holder in connection with adoor 136 of the doubleacting type. 'I'he guide member 26 is shown asbeing fastened to the door rather than the door casing. In anyinstallation, the guide member may be associated with the door or thedoor casing. I'have shown the door 136 associated with a wall structure138, and the door provided with the usual hinge means 140 of the typepermitting the door to swing to a full open position in eitherdirection, as illustrated.

Without further elaboration the foregoing will so fully explain myinvention that others may, by applying current knowledge, readily adaptthe same for use under various conditions oi service.

I claim:

1. The combination with a casing element and a door element hingedlyassociated therewith, of a guide structure embedded in one of saidelements, a slidemember associated with said guide structure and havinga cam surface and a holding surface, a link having one end pivotallyconnected with said sliding member and the opposaid elements, a rollernormally mounted in the path of said cam surface, means for yieldinglymounting said roller, movement of the door to an open position causingthe cam surface to engage the roller and move beyond the same to permitengagement of the roller with said -holdlng `surface to yieldinglyresist closing movementof the door, said roller being yieldingly held incontact with said holding surface with'suiiicient force to resist normalforces on the door, but yieldable to permit the door to closeA uponapplication.A

` a door element hingedly associated therewith,

of a guide structure embedded in Vone of said elements, a slide memberassociated with said guide member and having a cam surface and aholdingsurface, a link having one end pivotally connected with saidsliding member and the opposite end pivotally connected with the otherof said elements, a roller normally mounted in the path of said camsurface, means for yieldirigly mounting said rollermovement of the doorto an open position causing the cam surface to ent gage the roller andmove beyond the same to permit engagement of the roller withsaid holdingsurface toyieldingly resist closing movement of the door, said rollerbeing yieldingly held incontact with said holding surface withsuflicient force to resist normal forces on the door but yieldable topermit the door to close upon application 'of an abnormal force, andbuifer means arranged in the path of the sliding element to yieldinglyresist further movement of the sliding element after engagement of theroller with said holding surface. t

3. The combination with a door casing structure, and a doorustructurepivotally connected to said frame structure to swing open in eitherdirection, of a guide housed in one of said structures, a slide slidablein said guide, a link pivotally connected at one end to said slide andat the other end to said other structure, said guide and link when inclosed position occupying a space flush with the surface of thestructure housing said guide, said guide being of greater length thansaid link and having a recess shaped to llt and house said link when inclosed position, said recess being open on both sides to letsaid linkswing out in either direction, said link moving rsaid slide toward thepivotal axis of said door structure on opening movement in eitherdirection, cushioning means at the end of said guide nearest saidpivotal axis inaccessible to the operator and operative at alltimes forcushioning an opening movement in either direction, retainingmeansindependent of said cushioning means and actuated by said slideupon movement of the parts to open position, for

ture, and a door structure pivotally connected vto 1,986.0 f `site endpivotally connected with the `other ofsaidcasingstructm'e,ofaguidehousedinoneofsaidstructureaaslidememberslidableinsaid guide, a link pivotallyconnected at one end to said slide member and at the other end to saidother structure, said guide and link when the door is in its closedposition terminating flush with the surface of the structure housingsaid guide, said guide being of greater length than the link and-havinga recessshapedtotandhouse the link when the `door is in its closedposition, said link moving said slide member-toward the pivotal axis ofsaid door structure during the opening movement of 'the latter,cushioning means at the end of the guide next said pivotal axisoperativev at all times for cushioning the door when it is opened apredetermined amount. retaining means independent of said` cushioningmeans and actuated by said slide member upon movement of the door to itsopen position, for yieldingly resisting closing of the door up to apredetermined force, and manually adjustable means for conditioning saidretaining means to be operative or inoperative.

5. The combination with a casing element and a door element hingedlyassociated therewith, of a guide structure embedded in one of saidelements, a slide member associated with said guide structure, a linkhaving one end pivotally -connected with said slide'member and theopposite end pivotally connected with the other of said elements,resilient retaining means for catching said slide in the positioncorresponding to the open position of the door element, and readilyaccessible manual adjustment means for preconditioning said retainingmeans to be operative or inoperative;

6. The combination with a casing element, a door element hingedlyassociated therewith, and a spring means tending to close said door; ofa guide structure carried by one of said elements; a slide structureassociated with said guide structure and slidable along the same: a linkhaving one end pivotally connected with said slide structure, and theother end connected with the other of said elements to move said slidestructureuponV movement of said door; a cam on one of said'structuresand a camholding member on the other structure; said cam member having agently inclined comming surface and a steeply inclined holding surface.'inclined in `opposite directions; resilient means holding one of saidmembers in position to engage the other when the doorisopened;saidcammingsurfacebeingposidoor.

ELVIN H. JOHNSON.

